Freebox FTP Service Detection Scanner

Freebox FTP Service is part of the Freebox system, widely used as a set-top box with broadband internet router capabilities in France, provided by the ISP Free. It is utilized in various households for accessing digital multimedia content and providing Internet access to multiple devices. The FTP service enables users to manage and transfer files to and from their Freebox server over the network. Although primarily for residential users, small businesses may also employ it for its multimedia capabilities. However, the running FTP service on Freebox can expose the device to various network-based attacks if improperly configured.

The scan detects the presence of a Freebox FTP Service running on network assets by sending probes to standard FTP ports, particularly port 21. This identification process helps network administrators and security personnel maintain clear visibility over network devices and understand the software services running within their infrastructure. Knowing the existence of such services is crucial as they might introduce security weak points if left unmonitored or unsecured. It ensures the users are aware of exposed services, which could lead to further vulnerabilities if exploited improperly. Identifying the FTP server aids in inventory accuracy and future vulnerability assessment.

Freebox FTP Service detection occurs by analyzing the response to special data queries sent to the FTP port (port 21). This involves checking specific server strings that identify the FTP output, such as "Welcome to Freebox FTP Server." The scan's technical details revolve around sending a zero-data hex value to the specified port and analyzing the response for the tell-tale server identity string. When a positive match for the Freebox FTP Service signature is identified, it is logged and reported for further analysis. This process leverages network protocol interaction to ascertain active services on digital assets.

Having an FTP service exposed can lead to several potential effects if proper security controls are not enforced. Unauthorized access might be achieved if weak or default credentials are used, exposing personal files and data to malicious actors. Attackers could exploit the service to upload or download unapproved content or even gain a foothold in the network for further attacks. Running outdated or vulnerable versions of FTP software could also result in known software exploits being used against the system, causing data breaches or denial of service.